Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A head-end device comprising: a head-end control unit that receives a serial downlink signal transmitted from one of a plurality of base station interfaces; and a plurality of head-end transceivers that receive the serial downlink signal output from the head-end control unit, distribute the received serial downlink signal, and transmit the serial downlink signal in parallel to a remote device or an extension device, wherein one of the plurality of head-end transceivers receives the serial downlink signal and sequentially distributes the serial downlink signal to remaining head-end transceivers, wherein each of the plurality of head-end transceivers includes a plurality of sub head-end transceivers, and wherein one of the plurality of sub head-end transceivers receives the serial downlink signal, and distributes the serial downlink signal to at least one remaining sub head-end transceiver.
Telecommunications. This invention addresses the efficient distribution of downlink signals in a network. A head-end device is described that includes a head-end control unit. This control unit receives a serial downlink signal originating from one of multiple base station interfaces. The device also features multiple head-end transceivers. These transceivers receive the serial downlink signal from the control unit, then distribute it and transmit it in parallel to either a remote device or an extension device. A specific distribution mechanism is employed where one head-end transceiver receives the serial signal and sequentially passes it to the other head-end transceivers. Furthermore, each of these head-end transceivers contains multiple sub head-end transceivers. Within these sub-units, one sub head-end transceiver receives the serial downlink signal and distributes it to at least one other sub head-end transceiver. This hierarchical distribution ensures the signal is effectively broadcast to multiple destinations.
2. The head-end device of claim 1 , wherein the one of the plurality of head-end transceivers is an uppermost head-end transceiver from among the plurality of head-end transceivers.
This invention relates to a head-end device for optical communication systems, specifically addressing the challenge of efficiently managing and distributing optical signals in a network. The head-end device includes multiple head-end transceivers, each capable of transmitting and receiving optical signals. The device is designed to optimize signal routing and processing within the network by strategically positioning one of the transceivers as the uppermost transceiver among the plurality. This uppermost transceiver serves as a primary node for signal aggregation, distribution, or management, ensuring efficient signal flow and minimizing latency. The head-end device may also include additional components such as signal processors, amplifiers, or switches to further enhance performance. The uppermost transceiver's position allows for centralized control of signal routing, improving network reliability and scalability. This configuration is particularly useful in high-density optical networks where signal integrity and efficient data transmission are critical. The invention aims to provide a robust and flexible solution for managing optical signals in complex communication systems.
3. The head-end device of claim 2 , wherein each of the plurality of head-end transceivers includes a distributor that distributes an upper head-end transceiver signal transmitted from an upper head-end transceiver from among the plurality of head-end transceivers to a signal to be transmitted to the remote device or the extension device and a signal to be transmitted to a lower head-end transceiver.
A head-end device for optical communication networks addresses the challenge of efficiently distributing signals in a cascaded architecture. The device includes multiple head-end transceivers arranged in a hierarchical structure, where each transceiver can receive signals from an upper-level transceiver and distribute them to both remote devices and lower-level transceivers. Each transceiver is equipped with a distributor that splits the incoming signal into two paths: one for transmission to a remote device (such as an optical network terminal) and another for forwarding to a lower-level transceiver in the hierarchy. This design enables scalable signal distribution without requiring additional external components, reducing complexity and cost. The hierarchical arrangement allows for flexible network expansion, supporting both point-to-multipoint and cascaded configurations. The distributor ensures that signals are properly routed while maintaining signal integrity across multiple tiers. This approach is particularly useful in passive optical networks (PONs) where efficient signal management is critical for performance and scalability.
4. A head-end device comprising: a plurality of head-end transceivers that sequentially combine uplink signals received in parallel from each of remote devices or extension devices and output a combined serial uplink signal; and a head-end control unit that receives the combined serial uplink signal transmitted from one of the plurality of head-end transceivers and transmits the combined serial uplink signal to one of a plurality of base station interfaces, wherein each of the plurality of head-end transceivers includes a plurality of sub head-end transceivers, and wherein a lower sub head-end transceiver from among the plurality of sub head-end transceivers generates a combined signal by combining a signal transmitted from an upper sub head-end transceiver and an uplink signal directly received by the lower sub head-end transceiver, and outputs the combined signal.
This invention relates to a head-end device for managing uplink signals in a communication network, addressing the challenge of efficiently aggregating and transmitting parallel uplink signals from remote or extension devices to base station interfaces. The head-end device includes multiple head-end transceivers that sequentially combine uplink signals received in parallel from remote or extension devices, converting them into a combined serial uplink signal. Each head-end transceiver consists of multiple sub head-end transceivers arranged hierarchically. In this structure, a lower sub head-end transceiver combines signals from an upper sub head-end transceiver with its own directly received uplink signals, generating a combined signal that is then passed to the next lower sub head-end transceiver. This hierarchical combination process continues until the final combined serial uplink signal is produced. The head-end control unit then receives this combined signal from one of the head-end transceivers and forwards it to one of several base station interfaces. This design enables scalable and efficient aggregation of uplink signals, reducing complexity and improving signal management in distributed communication networks.
5. The head-end device of claim 4 , wherein the one of the plurality of head-end transceivers is a lowermost head-end transceiver from among the plurality of head-end transceivers.
This invention relates to a head-end device in a communication system, specifically addressing the challenge of efficiently managing data transmission and reception in a multi-transceiver configuration. The head-end device includes multiple head-end transceivers, each capable of transmitting and receiving data signals. The device is designed to optimize signal routing and processing by designating one of the transceivers as the primary or lowermost transceiver, which serves as a key node for coordinating data flow. This transceiver is positioned at the lowest level in the hierarchy of the plurality of transceivers, ensuring efficient data handling and minimizing latency. The head-end device may also include a controller that manages the operation of the transceivers, ensuring seamless data transmission and reception. The invention improves communication efficiency by leveraging the designated lowermost transceiver to streamline data routing, particularly in systems where multiple transceivers are involved. This configuration enhances reliability and reduces the complexity of data management in high-performance communication networks.
6. The head-end device of claim 5 , wherein each of the plurality of head-end transceivers includes a combiner that combines an upper head-end transceiver signal transmitted from an upper head-end transceiver from among the plurality of head-end transceivers and an uplink signal directly received by a corresponding head-end transceiver.
In the domain of wireless communication systems, particularly in distributed antenna systems (DAS) or small cell networks, a challenge arises in efficiently managing uplink signals from multiple transceivers to a central head-end device. Traditional systems often suffer from signal interference, synchronization issues, or inefficient bandwidth utilization when combining uplink signals from different transceivers. To address this, a head-end device is designed with multiple head-end transceivers, each equipped with a combiner. The combiner in each transceiver merges two distinct signals: an upper head-end transceiver signal transmitted from another head-end transceiver within the system and an uplink signal directly received by the transceiver itself. This dual-input combiner ensures that signals from multiple sources are aggregated without significant loss or interference, improving signal integrity and system efficiency. The combiner may employ techniques such as time-division multiplexing, frequency-division multiplexing, or digital signal processing to integrate the signals seamlessly. This design enhances the system's capacity to handle concurrent uplink transmissions while maintaining low latency and high reliability, making it suitable for dense network deployments where multiple transceivers operate in close proximity. The solution optimizes resource utilization and reduces the need for additional infrastructure, lowering overall system complexity and cost.
7. A method of operating a head-end device comprising: transmitting a serial downlink signal, in which all of downlink signals received by each of a plurality of base station interfaces are combined, to one of a plurality of head-end transceivers through a head-end control unit; receiving the serial downlink signal through the one of the plurality of head-end transceivers; and sequentially distributing the received serial downlink signal and transmitting the distributed serial downlink signals in parallel to a remote device or an extension device, wherein each of the plurality of head-end transceivers includes a plurality of sub head-end transceivers, and wherein one of the plurality of sub head-end transceivers receives the serial downlink signal, and distributes the serial downlink signal to at least one remaining sub head-end transceiver.
This invention relates to a distributed antenna system (DAS) for managing downlink signals in a telecommunications network. The system addresses the challenge of efficiently combining and distributing downlink signals from multiple base stations to remote or extension devices while minimizing signal loss and complexity. The method involves a head-end device that receives downlink signals from multiple base station interfaces. These signals are combined into a single serial downlink signal and transmitted to one of several head-end transceivers via a head-end control unit. Each head-end transceiver is further divided into multiple sub head-end transceivers. One sub head-end transceiver receives the serial downlink signal and distributes it to the remaining sub head-end transceivers. The distributed signals are then transmitted in parallel to remote or extension devices, ensuring efficient signal propagation across the network. This approach allows for scalable and flexible signal distribution, reducing the need for redundant hardware while maintaining signal integrity. The system is particularly useful in large-scale telecommunications networks where multiple base stations must interface with distributed antenna systems to provide seamless coverage.
8. A method of operating a head-end device comprising: receiving uplink signals transmitted in parallel from each of remote devices or extension devices, through a plurality of head-end transceivers; sequentially combining the received uplink signals to generate a combined serial uplink signal; and transmitting the combined serial uplink signal to one of a plurality of base station interfaces through a head-end control unit, wherein each of the plurality of head-end transceivers includes a plurality of sub head-end transceivers, and wherein a lower sub head-end transceiver from among the plurality of sub head-end transceivers generates a combined signal by combining a signal transmitted from an upper sub head-end transceiver and an uplink signal directly received by the lower sub head-end transceiver, and outputs the combined signal.
This invention relates to a method for operating a head-end device in a communication system, addressing the challenge of efficiently aggregating and transmitting uplink signals from multiple remote or extension devices to a base station. The system employs a hierarchical structure of head-end transceivers to process and combine uplink signals in parallel before serializing them for transmission. Each head-end transceiver consists of multiple sub head-end transceivers arranged in a cascaded configuration. In this setup, a lower sub head-end transceiver combines signals from an upper sub head-end transceiver with its own directly received uplink signals, generating a combined output. This hierarchical combination process continues sequentially across the sub head-end transceivers, ultimately producing a single combined serial uplink signal. This signal is then transmitted to one of several base station interfaces via a head-end control unit. The method ensures efficient signal aggregation and reduces the complexity of managing multiple parallel transmissions by leveraging a structured, multi-level combining approach. The invention is particularly useful in distributed antenna systems or similar architectures where centralized signal processing is required.
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February 25, 2020
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